Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$714,698
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 86How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $685,000 on Nov 7, 2025

339 FOREST LN

SMITHTOWN, NY 11787
0
Baths
0.5 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$715K
$616K low$814K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$685,000 · Nov 7, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,403 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$2,925 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$2,725
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$365,625

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountySUFFOLK
Lot (acres)The size of the land the home sits on, from county records.0.50
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(2)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Forest Brook Elementary SchoolB
Elementary · Grades PK–5 · 0.1 mi
M
Hauppauge Middle SchoolC
Middle · Grades 6–8 · 0.8 mi
H
Hauppauge High SchoolA
High · Grades 9–12 · 0.8 mi

District: Hauppauge Union Free School District

Neighborhood · ZIP 11787These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.44
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.69

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.34,997
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,227 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$138,428
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$168,182
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.48 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

Owner Tools

Do you own this home?
Claim this home

Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

339 Forest Ln measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth less than 73% of homes in Smithtown 11787
  • Has a bigger lot than 82% of homes in Hauppauge

What homes are worth in Smithtown 11787

Each bar is how many homes fall in that price range. The marker is this home.

This home
$526K$1.5M

This home is worth more than 27% of homes in Smithtown 11787.

How it measures up in Smithtown 11787

The dot is this home. The mark in the middle is the typical home in Smithtown 11787.

Estimated value$714,698
CheaperTypical $794,948Pricier

Pricier than 27% of homes nearby

Lot size0.5 ac
SmallerTypical 0.38 acBigger

Bigger than 70% of homes nearby

How 339 Forest Ln ranks against every home in each area.
MeasureThis homeHauppaugeSmithtown 11787Suffolk County
Estimated valuepricier than$714,69837% of homes27% of homes54% of homes
Lot sizebigger than0.5 ac82% of homes70% of homes77% of homes

About 339 Forest Ln

How much is 339 Forest Ln, Smithtown, NY worth?

The TopHap Estimate for 339 Forest Ln, Smithtown, NY is $714,698 as of Sep 24, 2026. The likely range is $615,555 to $813,841. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 339 Forest Ln, Smithtown, NY last sell?

339 Forest Ln, Smithtown, NY last sold on Nov 7, 2025 for $685,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

What schools serve 339 Forest Ln, Smithtown, NY?

339 Forest Ln, Smithtown, NY is assigned to Forest Brook Elementary School (elementary), rated B; Hauppauge Middle School (middle), rated C; Hauppauge High School (high), rated A. All sit in Hauppauge Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 339 Forest Ln, Smithtown, NY compare to other homes in Smithtown 11787?

Among the 11,476 homes in Smithtown 11787, it is worth more than 27% of them ($714,698 against a typical $794,948) and its lot is bigger than 70% of them (0.5 ac against a typical 0.38 ac). Measured against all of Suffolk County, it is worth more than 54% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 339 Forest Ln, Smithtown, NY?

The 2024 property tax bill for 339 Forest Ln, Smithtown, NY was $5,403. The county assessed it at $2,925.

More homes on Forest Ln

Closest homes

More homes in Smithtown 11787

Assigned schools

Explore the area

See this home in context

Open 339 Forest Ln on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map